Series 9 hand grinders are powered by a Dumore high torque 1/4 HP fan cooled motor that idles at 15,500 rpm, and have three heavy duty precision grease-lubricated ball bearings that provide rigid spindle support.

The threaded spindle allows for use of 1/4" diameter shank mounted points and rotary files in a collet chuck, or 3/8" bore diameter standard grinding wheels up to 1 1/4" wheel diameter, and high speed grinding wheels up to 2" wheel diameter.

Since 1913, Dumore has been designing and manufacturing highly accurate
and reliable drilling and grinding tools for tool room and production needs.
Over 100 years later, that legacy of quality continues.